Предмет: Математика, автор: btsf22786

4. Ариф по лестнице поднимается по 2 , а спускается по 3 ступени. Найдите число ступеней, если он сделал всего 25 шагов. А) 27 В) 30 С) 36 C) 36 Д) 18 E) 20​

Ответы

Автор ответа: vikagri2009
1

Ответ:

Ответ В)30

Пошаговое объяснение:

всего ступенек- x

х : 2 - поднимался

х : 3 - спускался

х : 2 + х : 3 = 25

5х : 6 = 25

х = 30

(если не сложно сделайте пожалуйста лучшим ответом)

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